Post-driver



(No Model.)

E. HIATT.

` `POST DRIVER. No. 293,021. u Patented Feb.'5, 1884.

" NUNrTnn STATES PATENT Tric a .i

EDWIN unrrr, or'xnw cAsrLn, ixnnxNA..

POST-DRIVER.

SPECIFICATION forming part of Letters Patent No. 293,021, dated February 5, 1 884.

` Application filed September QS, 1883. (No model.)

. sists in providing an improved hammer-rest and constructing the base of the machine so that itcan be adjusted sidewise.

-The objects of my invention are, iirst, to provide a sidewise adjustment for post-drivers; and, second, to constiuct a simple and substantial hammer-rest. I attain these objects by the mechanism illustrated by the accompanying drawings, in which- Figure l is a perspective view of a post-` driver embodying my invention. view of the hammer-rest. the axle-clamps.

Similar letters refer to similar paris throughout the several views;

The axle b is secured on the runners l 2,

Fig. 2 is a Fig. 3 is a view of and the said runners are also secured together by the cross-bars h 7W.

VOn the axle b is placed the sliding bar a, which is movabiy secured to the axle by clamps a, passing under it, and by the lower ends of the arms d. all as shown in Fig. 1.

To one of the clamps c is secured a crank c, for holding the bar a from moving when desired, as shown in Fig. 3. l

J ust back of the axle the arm b is secured to the runner 2 and braced by the brace 3, all as shown. A stud, b, is secured in the en d of the said arm, and on which the lever b rests. The said lever is made tapering each way from the slot in which the stud works, and the forward end is provided with a metallic point, s, which engages in the holes c in the bar a, all as shown. rlhe bolster e is secured on the bearing e and adj ustably held on each side by the clamps d d', all of which are shown and described in my rst application. The iootbars B are secured at one end to the bolster e, and extend forward a few feet. Between the front ends of the two bars the front lever, h,

`is secured, thc front cnd of which is held bya clamp-screw, h h, as shown. The clamp` posts care secured on one side of each of the bars B, and extend downward and inward, as shown. To the lower ends of thesaid posts the cross bars e are secured, and 011 these cross-bars the clamps D D rest and are made to operate. The clamp D is made stationary to the bars c, and the clamp D is pivoted at its front end and made to clamp to a post by the spring g g. (Better shown in the upper clamps.)

On the uppercross-bars, f f,are two clamps, D D', one of which is pivoted to the bar f at f and provided with a wooden spring, g, all thc same as the lower clamps. rlhe uprights A are secured to the foot-bars B and braced on each side by braces e, e, and a n. At about the center of the said uprights the hammerrests are secured. The said hammer-rests consist of a block, i, `with a slot eut in its lower edge. In this slot is placed the rest l', which slides on-the pin 7e and cord-wheel k, as shown in Fig. 2. The rests L are provided with a spring, fi, secured at one end to the rod fi, so that the rest will not project through the uprights only when required. The upper ends of the uprights are secured together by Ethe bars C,- between which four pulleys work,

and the rope E, hammer B, and trip mechanism H G are all shown and described in my former application.

To operate my machine, it is drawn on the line of the fence. A post is placed between the clamps `D D D D and made to stand perpendicular by adjusting the levers 7L 6 Then, if the post is not in r and clamps h d d. line, the clamp-screw c a is loosened, and by moving the lever b in the desired direction the bar c slides, as indicated by the arrows,

NVhen the Ico Having thus described my invention, Ielaim 2. In a posbdrivei, the uprghts A, having the following and desire to secure the saine by hammer-rests fi, bearingsv k k, rest 7c, spring 1o Letters Patent: 6', rod i, and cord fi', all for the purpose seb l. In a post-driver, the sliding bm: a, adfort-h. v 5 justably secured to the axle b by clamps a, Y EDWIN HIATT.

and made to slide sidewise by the lever b', Vitnesses: Working iu holes d, and resting on the arm B. E. BOWMAN, b, and pin b, all for the purpose set forth. THOMAS XV. GOUGH. 

